Home / 2,943.38-4,416.08-1,645.76

Finding the Fourth Proportional to 2,943.38, 4,416.08 and 1,645.76

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Solution

The fourth proportional to 2,943.38, 4,416.08 and 1,645.76 is: 2,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.38 : 4,416.08 = 1,645.76 : x
  2. Step 2: Convert to fraction form
    2,943.38/4,416.08 = 1,645.76/x
  3. Step 3: Cross multiply
    2,943.38x = 4,416.08 × 1,645.76
  4. Step 4: Simplify right side
    2,943.38x = 7,267,777.51
  5. Step 5: Solve for x
    x = 7,267,777.51/2,943.38
  6. Step 6: Final answer
    x = 2,469.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.